CN101902445A - Multi-media data downloading system and video system based on network - Google Patents
Multi-media data downloading system and video system based on network Download PDFInfo
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- CN101902445A CN101902445A CN2009100859391A CN200910085939A CN101902445A CN 101902445 A CN101902445 A CN 101902445A CN 2009100859391 A CN2009100859391 A CN 2009100859391A CN 200910085939 A CN200910085939 A CN 200910085939A CN 101902445 A CN101902445 A CN 101902445A
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Abstract
The invention provides a multi-media data downloading system and a video system based on a network. The multi-media data downloading system comprises multiple set top boxes accessed into internet, an audio-video output device connected with the set top boxes, an encapsulation server and a system management server, wherein the set top boxes are respectively provided with P2P modules; the encapsulation server is used for data partioning and encapsulation; the system management server is used for grouping the set top boxes to enable the set top boxes in the same group to be mutually associated; and the P2P module is used for uploading and/or downloading data among the multiple set top boxes based on association. By adopting a P2P network downloading work mode, data downloading can be realized among the set top boxes accessed into the network, and moreover, the more the number of the accessed set top boxes is, the faster the downloading speed at a user terminal is, thus effectively solving the problem of lowered service quality along with the increased user number resulted from media data downloading by adopting a C/S work mode.
Description
Technical field
The present invention relates to multimedia technology field, relate in particular to based on network multi-media data downloading system, video system.
Background technology
Set-top box makes such as video display terminals such as TVs and has inserted the Internet, therefore, the user also can enjoy on the video display terminals such as TV with the Internet on identical multimedia resource, that is to say, pass through set-top box, the user can enjoy and hold same multimedia service at PC (Personal Computer, personal computer).
Present set-top box mostly is the (Client/Server based on C/S, client/server) terminal of mode development, it is the C/S set-top box, the data downloading mode as shown in Figure 1 between itself and the operator, Fig. 1 shows C/S mode of operation schematic diagram in the prior art, as can be seen from the figure, in this pattern, server is with mode and each client of clean culture, it is set-top box 1, set-top box 2, set-top box 3, set-top box 4, ..., set-top box 2N, set-top box 2N+1 connects, set-top box is sent service request, and server selects suitable data content to send to corresponding set-top box, finishes service conversation one time by the mode of asking and reply.The shortcoming of this mode of operation is that the ability and the output bandwidth of server have certain limit.Along with the increase of the set-top box quantity of request server, the average bandwidth that each set-top box can be enjoyed will reduce gradually, and for using the user of set-top box, the response speed of server can significantly descend, even can't obtain service.Therefore, if in peak period, when watching content of multimedia, download the demand that can not well satisfy the client based on the multi-medium data of C/S model by video display terminals such as TVs.
Summary of the invention
Technical problem to be solved by this invention is: a kind of based on network multi-media data downloading system is provided, effectively solved adopt the C/S mode of operation carry out multi-medium data download produced, cause the problem that service quality descends with the number of users increase.
In order to address the above problem, the invention discloses a kind of based on network multi-media data downloading system, comprise a plurality of set-top box that insert the Internet, described system also comprises at least one package server, at least one system management server, be respectively arranged with the P2P module in the described set-top box, described package server is used to carry out data and cuts apart, encapsulates, sends; Described system management server is used for described set-top box is divided into groups, and makes on the same group that set-top box mutual is associated, and described P2P module is used for carrying out data upload and/or download according to described being associated between described a plurality of set-top box.
Preferably, described package server further comprises: cutting unit, sequence number indexing unit, and wherein, cutting unit is used for described data are divided into a plurality of packets; The sequence number indexing unit is used to be followed successively by the sequence label of every segment data bag flag sequence numbering.
Preferably, described package server also comprises the timestamp indexing unit, and described timestamp indexing unit is used for giving described each packet marking timestamp according to reproduction time.
Preferably, described system management server further comprises: registration management unit, empowerment management unit, authentication management unit, grouped element, associative cell; Wherein, the registration management unit is used for described a plurality of set-top box are carried out registration management respectively; The empowerment management unit is used for described a plurality of set-top box are carried out empowerment management respectively; The authentication management unit is used for described set-top box is carried out authentication management respectively; Grouped element is used for being divided into one group principle according to the set-top box that will upload or download same program or channel, and described a plurality of set-top box are divided into groups; Associative cell is used for according to shortest path and optimum bandwidth principle, be set-top box selection connection tabulation on the same group, and according to described connection tabulation, making on the same group, set-top box mutual is associated.
Described set-top box is built-in with the P2P module, and described P2P module comprises: correlation acquisition unit, data download unit, data upload unit, decoding unit, audio frequency and video output unit between authentication request transmitting element, network node.Wherein, the authentication request transmitting element is used to send P2P node request authentication information, so that described set-top box becomes the P2P network node; Correlation acquisition unit between network node is used for obtaining the connection relation list between described set-top box and described other set-top box of P2P network; The data download unit is used for foundation described connection tabulation reception and the buffer memory a plurality of packets from another set-top box; Described a plurality of packet is split to form by data file, and each packet has sequence number and timestamp separately; The data upload unit is used for cached data packet being uploaded to the set-top box of sending download request according to described connection relation list; Decoding unit is used for the sequence number according to described a plurality of packets, and described a plurality of packets are continued into complete data file; And, described complete data file is realized level and smooth decoding according to described timestamp; The audio frequency and video output unit is used for decoded data are converted to the output of audio/video signal.
Preferably, described data downloading system also comprises the service customizing server, and described service customizing server is used for the portal website as the video download, so that the user is by the customized video traffic of described set-top box.
Preferably, described data downloading system also comprises push server, and described push server is used to push the customized described video traffic of user.
On the other hand, the present invention also provides a kind of video system, described video system comprises based on network multi-media data downloading system, described based on network multi-media data downloading system comprises that a plurality of set-top box that insert the Internet, described system also comprise at least one package server, at least one system management server, be respectively arranged with the P2P module in the described set-top box, described package server is used to carry out data and cuts apart, encapsulates; Described system management server is used for described set-top box is divided into groups, and makes on the same group that set-top box mutual is associated, and described P2P module is used for carrying out data upload and/or download according to described being associated between described a plurality of set-top box.
In the present invention, in the present invention is based on the multi-media data downloading system of network, by adopting P2P network download mode of operation, make the set-top box in the access network can carry out the download of data each other, and, the set-top box quantity of access network is many more, the speed of download of user terminal is fast more, effectively solved adopt the C/S mode of operation carry out multi-medium data download produced, cause the problem that service quality descends with the number of users increase.
Description of drawings
Fig. 1 is a C/S mode of operation schematic diagram in the prior art;
Fig. 2 is the structure diagram that the present invention is based on the multi-media data downloading system of network;
Fig. 3 is the structured flowchart of package server;
Fig. 4 is the structured flowchart of another embodiment of package server;
Fig. 5 is the structured flowchart of an embodiment of system management server of the present invention;
Fig. 6 is under the P2P downloading mode, and data file is divided into the schematic diagram of packet;
Fig. 7 is under the P2P downloading mode, and the data packet recovery of cutting apart is the schematic diagram of complete data file;
Fig. 8 is under the P2P downloading mode, the present invention is based on the downloading process schematic diagram of the multi-media data downloading system of network;
Fig. 8 A is the structured flowchart of P2P module in the set-top box;
Fig. 9 is the structural representation of an embodiment of video system of the present invention;
Figure 10 is the flow chart of steps that the system of video system shown in Figure 9 once downloads.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
In the present invention, adopt P2P (peer-to-peer, the partner is to the partner) the network download mode of operation, in the set-top box of system, the P2P module is set, make each set-top box that is in the P2P network can carry out uploading and/or downloading of data each other, the set-top box quantity of access network is many more, and the speed of download of user terminal is fast more.
With reference to Fig. 2, Fig. 2 is the structure diagram that the present invention is based on the multi-media data downloading system of network, this system mainly comprises four chief components: a plurality of set-top box 203 of package server 201, system management server 202, access the Internet 204, and, in set-top box 203, be provided with P2P module 2031.Wherein, package server 201 is used to carry out data and cuts apart, encapsulates; System management server 202 is used for set-top box 203 is divided into groups, and makes that set-top box 203 is interrelated on the same group, and P2P module 2031 is used for according to carrying out data upload and/or download between related a plurality of set-top box 203.
With reference to Fig. 3, Fig. 3 shows the structured flowchart of package server, and this package server comprises cutting unit 301 and sequence number indexing unit 302, and wherein, cutting unit 301 is used for data are divided into a plurality of packets; Sequence number indexing unit 302 is used to be followed successively by the sequence label of every segment data bag flag sequence numbering.
With reference to Fig. 4, Fig. 4 is the structured flowchart of another embodiment of package server, and this package server comprises cutting unit 401, sequence number indexing unit 402 and timestamp indexing unit 403, and wherein, cutting unit 401 is used for data are divided into a plurality of packets; Sequence number indexing unit 402 is used to be followed successively by the sequence label of every segment data bag flag sequence numbering, and timestamp indexing unit 403 is used for giving described each packet marking timestamp according to reproduction time.
With reference to Fig. 5, Fig. 5 is the structured flowchart of an embodiment of system management server of the present invention, and system management server comprises:
Certainly, data downloading system can also comprise the service customizing server, and the service customizing server is used for the portal website as the video download, so that the user is by the customized video traffic of described set-top box.Perhaps, data downloading system can also comprise and also comprise push server that described push server is used to push the customized described video traffic of user.
The present invention is in the application of reality the time, and the set-top box of access network is carried out registration, mandate and authentication management, is called a node of P2P network.Then, set-top box by all adding P2P networks of P2P management system is divided into groups, its implementation procedure is: built-in EPG (the Electronic Program Guide of set-top box at first, electric program menu) program or the channel information selected of recording user, when set-top box is sent transmission grouping request EPG information is also sent to the P2P management system, system adopts automatic searching algorithm through after authenticating, and seeks all P2P network nodes that transmitting or downloading same program or channel; Then the set-top box of the request of sending as one of them adjacent P2P network node, divide in a group with them, form grouped data, grouped data is stored in the database, grouping is just finished automatically by database: the P2P management system is according to shortest path and optimum bandwidth principle then, be P2P network node selection P2P connection tabulation on the same group, each P2P network node is according to the connection tabulation search of returning automatically on the same group, and some on the same group or a plurality of P2P network nodes of selecting to have shortest path and Shan transmission speed also therefrom obtain needed packet.Therefore set-top box can be obtained packet to a plurality of P2P connected nodes simultaneously, has improved transmission speed; P2P connects the P2P node that tabulation also can only provide limited quantity simultaneously, the node number can be controlled and adjust according to the P2P network bandwidth and program situation, be convenient to centralized management, in the P2P of limited quantity network node, search for automatically and interconnect with the transmission data.
Each can require to add certain grouping at any time as P2P network node set-top box, in case by set-top box EPG information and solicited message are sent to the P2P management system, implementation procedure is the description of institute's face as above.Therefore when the user changed the program channel of watching or downloading, the P2P management system can be sought one group again with the fastest speed and have the adjacent P2P network node of shortest path and optimum bandwidth and be connected tabulation, the transmission of realization packet and shared.
By said method, all P2P network nodes on the internet all can receive that P2P connects tabulation, carries out mutual shared data and Data transmission under the condition of relative the fastest transmission speed.A P2P management system can be managed the set-top box of tens thousand of P2P network nodes, and a plurality of P2P management systems can be used simultaneously, the set-top box of the P2P network node that management increases arbitrarily.
With reference to Fig. 6, Fig. 6 is under the P2P downloading mode, and data file is divided into the schematic diagram of packet.In this schematic diagram; a complete raw data file; according to certain rule; be split into the packet of one or several fixed sizes, packet 1, packet 2, packet 3, packet 4 ..., packet N, each packet can use specific algorithm for encryption protection (also can not use encipherment protection); among Fig. 6, packet is not through encrypting.Packet in transmission course, the sequence arrangement during no longer according to initial segmentation.They are distributed on a plurality of different user terminals.
Decoder need to prove that each packet can also have the timestamp mark except sequence label, so that can be realized level and smooth decoding.Packet among Fig. 6 does not illustrate the timestamp mark.
With reference to Fig. 7, Fig. 7 is under the P2P downloading mode, and the data packet recovery of cutting apart is the schematic diagram of complete data file.Among Fig. 7 as can be seen, the client in the P2P network, after having downloaded a plurality of packets, according to sequence label, regrouping is the schematic diagram of complete file.
With reference to Fig. 8, Fig. 8 is under the P2P downloading mode, the present invention is based on the downloading process schematic diagram of the multi-media data downloading system of network, data downloading system comprises: package server 801, complete content owner 802, system management server 803, set-top box 804,805,806 etc.Set-top box 804 is sent request of data to initial complete content owner 802, and the beginning data download.In corresponding downloading process, the packet state that set-top box 804 periodically has to system management server 803 these machines of report.This process and traditional C/S mode of operation do not have the difference of essence, and still along with the increase of set-top box 804 quantity, mode of operation begins to change.When set-top box 804 when system management server 803 is initiated the request service, the network state that system management server 803 is informed (existence of packet in the P2P network) will comprise complete content owner 802 address and the address of set-top box 804 (if set-top box 804 still in downloading process or still online).Set-top box 805 will be initiated the request of data download the while to set-top box 804 and complete content owner.Notice that this moment, set-top box 804 one side were downloaded the data that do not obtain from the complete content owner, provided the data that oneself had to set-top box 805 again simultaneously, promptly carried out the work of downloading (from the complete content owner) and uploading (to set-top box 805) simultaneously.The noticeable phenomenon of another one is, set-top box 805 might have been downloaded set-top box 804 unexistent data content packets from the complete content owner, such data packet can provide (uploading) to give set-top box 804 from set-top box 805, and set-top box 804 and set-top box 805 all are the peer-to-peer network entities that can upload simultaneously and download.Download situation and foregoing description that set-top box 806 adds behind the network are similar, just relative complex.
Why above-mentioned set-top box 804,805,806 can realize the download function of P2P, essential reason be built-in adopted P2P module in set-top box 804,805,806, with reference to Fig. 8 A, this P2P modular structure is as follows:
Authentication request transmitting element 801A is used to send P2P node request authentication information, so that described set-top box becomes the P2P network node;
Audio frequency and video output unit 806A is used for decoded data are converted to the output of audio/video signal.
Below in conjunction with Fig. 9, the specific embodiment of video system of the present invention is described.This video system comprises: user's high definition terminal 901, the download platform subsystem 903 that is connected with a plurality of user's high definition terminals 901 by the Internet 902, and the content disposal subsystem 905 that is connected with download platform subsystem 903 respectively, maintenance subsystem 906, and content disposal subsystem 905, maintenance subsystem 906 also are connected with database subsystem simultaneously.Wherein, the download platform subsystem includes package server 9031, system management server 9032.
In user's high definition terminal 901, comprise set-top box, be provided with the P2P module in the set-top box, the structure of this P2P module is described in the above, does not repeat them here.Package server 9031, system management server 9032 are superincumbent to be described in detail, at this, repeats no more.
The high definition video system is by main subsystem such as content disposal subsystem 905, download platform subsystem 903, maintenance subsystem 906, database subsystem 907, finish introducing from the high definition video content, download to control and realization that user terminal is watched the whole service flow process, wherein download platform subsystem 903 adopts P2P to download transmission modes.
905 pairs of outside movie and television contents of introducing of content disposal subsystem are distributed to download platform subsystem 903 through after a series of processing, use for professional, and download platform is issued movie and television contents, can download for user terminal access.After the user terminal access download platform, seek the movie and television contents that needs download, download platform after business support subsystem 904 carries out authentication, charging, allows user terminal to download this movie and television contents.After the user terminal downloads movie and video programs, can play by TV.
Further introduce content disposal subsystem 905 below, the Content Management of high definition video be meant the control and the processing of the video display resource that the outside is introduced make it to form the high definition video content that can meet service application, comprise following several aspect:
Gather:, make it to store in the content disposal subsystem 905 of the collection of outside original quality than higher video display resource.Its unprocessed form may be diversified.
Audit: the content of introducing is examined, make its content meet the needs of national every laws and regulations and high definition video business.To delete undesirable video display resource.
Mark: according to certain rule movie and television contents is carried out brief description, carry out mark.
Classification: movie and television contents is carried out classification setting according to certain rule (as, more common video display classification etc.).
Index: the video display resource is carried out the processing of data aspect, make the user can better search for film.
Conversion: original movie and television contents is carried out format conversion, and it is required to make it to meet the high definition video business.Same original video display resource may convert multiple form to, adapts to the different user terminals needs.
Distribution: to coming from the service request of download platform, the movie and television contents that will meet its demand is distributed to download platform, enters the service application flow process.
High definition video described above system is provided with the P2P module in set-top box, by adopting the P2P download technology, improved the download quality, and the high definition video content by the video display platform provides has improved user's viewing quality.Strengthened the business experience that the user uses broadband video display platform, made " network " home theater really enter into family.
With reference to Figure 10, Figure 10 is the flow chart of steps that the system of video system shown in Figure 9 once downloads, and specifically comprises the steps:
Step 1001: user's starter motor top box;
Step 1002: by the input of the remote controller in hand user's user name, password;
Step 1003: system management server 9032 will be verified user profile;
Step 1004: judge that the user registers? under situation about having registered, execution in step 1006, under the situation that does not have registration, execution in step 1005;
Step 1005: register, and return step 1001;
Step 1006: enter system;
Step 1007: the subscriber computer top box is added the P2P network, to become a node of P2P network;
Step 1008: the user browses can be for the multimedia resource of downloading;
Step 1009: use a teleswitch and choose required multimedia resource, send download request;
Step 1010: other have the node set-top box of this multimedia resource in the system search P2P network;
Step 1011: judge that multimedia resource exists in other set-top box nodes of P2P network? if exist, execution in step 1012 is not if exist execution in step 1008;
Step 1012: download multimedia resource.
Each embodiment in this specification adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
More than based on network multi-media data downloading system provided by the present invention, video system are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. based on network multi-media data downloading system, comprise a plurality of set-top box of inserting the Internet, it is characterized in that, described system also comprises at least one package server, at least one system management server, be respectively arranged with the P2P module in the described set-top box, described package server is used to carry out data and cuts apart, encapsulates; Described system management server is used for described set-top box is divided into groups, and makes on the same group that set-top box mutual is associated, and described P2P module is used for carrying out data upload and/or download according to described being associated between described a plurality of set-top box.
2. system according to claim 1 is characterized in that, described package server further comprises:
Cutting unit is used for described data are divided into a plurality of packets;
The sequence number indexing unit is used to be followed successively by the sequence label that every segment data bag flag sequence is numbered.
3. system according to claim 2 is characterized in that described package server also comprises the timestamp indexing unit, and described timestamp indexing unit is used for giving described each packet marking timestamp according to reproduction time.
4. system according to claim 3 is characterized in that, described system management server further comprises:
The registration management unit is used for described a plurality of set-top box are carried out registration management respectively;
The empowerment management unit is used for described a plurality of set-top box are carried out empowerment management respectively;
The authentication management unit is used for described set-top box is carried out authentication management respectively;
Grouped element is used for being divided into one group principle according to the set-top box that will upload or download same program or channel, and described a plurality of set-top box are divided into groups;
Associative cell is used for according to shortest path and optimum bandwidth principle, be set-top box selection connection tabulation on the same group, and according to described connection tabulation, making on the same group, set-top box mutual is associated.
5. system according to claim 4 is characterized in that, described P2P module comprises:
The authentication request transmitting element is used to send P2P node request authentication information, so that described set-top box becomes the P2P network node;
Correlation acquisition unit between network node is used for obtaining the connection relation list between described set-top box and described other set-top box of P2P network;
The data download unit is used for foundation described connection tabulation reception and the buffer memory a plurality of packets from another set-top box;
The data upload unit is used for cached data packet being uploaded to the set-top box of sending download request according to described connection relation list;
Decoding unit is used for the sequence number according to described a plurality of packets, and described a plurality of packets are continued into complete data file; And, described complete data file is realized level and smooth decoding according to described timestamp;
The audio frequency and video output unit is used for decoded data are converted to the output of audio/video signal.
6. system according to claim 5 is characterized in that described data downloading system also comprises the service customizing server, and described service customizing server is used for the portal website as the video download, so that the user is by the customized video traffic of described set-top box.
7. system according to claim 6 is characterized in that described data downloading system also comprises push server, and described push server is used to push the customized described video traffic of user.
8. video system, described video system comprises based on network multi-media data downloading system, it is characterized in that, described based on network multi-media data downloading system comprises that a plurality of set-top box that insert the Internet, described system also comprise at least one package server, at least one system management server, be respectively arranged with the P2P module in the described set-top box, described package server is used to carry out data and cuts apart, encapsulates; Described system management server is used for described set-top box is divided into groups, and makes on the same group that set-top box mutual is associated, and described P2P module is used for carrying out data upload and/or download according to described being associated between described a plurality of set-top box.
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| CN2009100859391A CN101902445A (en) | 2009-05-27 | 2009-05-27 | Multi-media data downloading system and video system based on network |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196314A (en) * | 2011-03-28 | 2011-09-21 | 苏州汉辰数字多媒体有限公司 | System and method for realizing streaming media transmission by using peer-to-peer (P2P) set-top box |
| CN102404608A (en) * | 2011-11-30 | 2012-04-04 | 苏州奇可思信息科技有限公司 | Video on demand method based on point-to-point transmission of local area network |
| CN102638481A (en) * | 2011-02-15 | 2012-08-15 | 英大传媒投资集团有限公司 | Audiovisual material remote filing system and method thereof |
| CN104935644A (en) * | 2015-06-02 | 2015-09-23 | 四川九天揽月文化传媒有限公司 | Method and device for distribution storage of film sources |
| CN107920072A (en) * | 2017-11-14 | 2018-04-17 | 深圳市视维科技股份有限公司 | A kind of multimedia sharing method and system based on data characteristics |
| CN107948717A (en) * | 2017-12-01 | 2018-04-20 | 广东九联科技股份有限公司 | A kind of set-top box broadband network shared system |
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2009
- 2009-05-27 CN CN2009100859391A patent/CN101902445A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638481A (en) * | 2011-02-15 | 2012-08-15 | 英大传媒投资集团有限公司 | Audiovisual material remote filing system and method thereof |
| CN102638481B (en) * | 2011-02-15 | 2017-04-05 | 英大传媒投资集团有限公司 | Audiovisual materials remote archiving system and its method |
| CN102196314A (en) * | 2011-03-28 | 2011-09-21 | 苏州汉辰数字多媒体有限公司 | System and method for realizing streaming media transmission by using peer-to-peer (P2P) set-top box |
| CN102404608A (en) * | 2011-11-30 | 2012-04-04 | 苏州奇可思信息科技有限公司 | Video on demand method based on point-to-point transmission of local area network |
| CN104935644A (en) * | 2015-06-02 | 2015-09-23 | 四川九天揽月文化传媒有限公司 | Method and device for distribution storage of film sources |
| CN107920072A (en) * | 2017-11-14 | 2018-04-17 | 深圳市视维科技股份有限公司 | A kind of multimedia sharing method and system based on data characteristics |
| CN107920072B (en) * | 2017-11-14 | 2021-02-09 | 深圳市视维科技股份有限公司 | Multimedia sharing method and system based on data characteristics |
| CN107948717A (en) * | 2017-12-01 | 2018-04-20 | 广东九联科技股份有限公司 | A kind of set-top box broadband network shared system |
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Application publication date: 20101201 |